The ultimate is their Straight Line Seater with their Bushing neck sizing die. These are quite spendy though but are about as good as I have tested in 50 BMG dies and if youcan believe it very resonable priced for a match grade set of 50 BMG dies.

These will run $400 for the set.

One of the best presses I have seen on the market for match grade 50 BMG ammo is their 50 BMG Loading Press with the Rack and Pinion design. This is a true match grade press and runs $395.

The Ammomaster press will work well with a set of custom match dies but the RCBS will not offer consistant true match grade ammo.

So if you want the lower cost RCBS press, I would recommend getting the match dies.

I use the Hornady kit with the floating seater. This equipment yields excellent results with my AR-50.

I regularly hold .5 MOA for 3 shots (less regularly with 5!) at 600 yards in light winds from a bipod with sandbag rear rest. I have a couple 5 shot groups under .3 MOA (shot in excellent conditions, of course) with this setup.

sorry about mt typing i just had a big piece of glass going thought my hand at work i looked at the site i didnt see any rack and pion press and if i did get that one could i use it for all my small rounds to